Improved Fine Frequency Synchronization Method for OFDM-Based DRM

Young-Hwan YOU
Sang-Tae KIM
Kyung-Taek LEE
Hyoung-Kyu SONG

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E91-A    No.5    pp.1296-1298
Publication Date: 2008/05/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e91-a.5.1296
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Mobile Information Network and Personal Communications
digital radio mondiale,  OFDM,  synchronization,  

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In this letter, a robust pilot-assisted synchronization scheme is proposed for estimation of residual frequency offset (RFO) in OFDM-based digital radio mondiale (DRM) system. The RFO estimator uses the gain reference pilots mainly reserved for the channel tracking in the DRM standard. To demonstrate the efficiency of the proposed RFO estimator, comparisons are made with the conventional RFO estimator using the frequency reference pilots in terms of mean square error (MSE) performance.